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Accueil du site → Projets de développement → Projets de recherche pour le Développement → 2020 → FROM SEED TO SERVICE : MANAGING THE MICROSITE TO MAXIMIZE RETURNS IN RANGELAND RESTORATION AND REHABILITATION

United States Department of Agriculture (USDA) 2020

FROM SEED TO SERVICE : MANAGING THE MICROSITE TO MAXIMIZE RETURNS IN RANGELAND RESTORATION AND REHABILITATION

Seed Rangeland Restoration

United States Department of Agriculture (USDA) National Institute of Food and Agriculture

Titre : FROM SEED TO SERVICE : MANAGING THE MICROSITE TO MAXIMIZE RETURNS IN RANGELAND RESTORATION AND REHABILITATION

Identification : 1024877

Pays : Etats Unis

Durée : START : 15 NOV 2020 TERM : 14 NOV 2024

Résumé
Much of the US rangeland extent has been degraded by historical management practices and disturbance events. Annually, millions of dollars are spent reseeding degraded rangeland, often with little resulting return of native species or ecosystem services. Management methods that target microsite conditions to increase seed success have shown promise, but have often been applied to relatively small-scales or on a small number of species. This project aims to test the efficacy of microsite management techniques, both abiotic and biotic, on a widely diverse set of species native to the Intermountain West rangelands. Using new furrowing techniques, seed coating technologies, and soil inoculum treatments, we will test how microsite management can influence diverse seed success. We will also measure functional response traits of each species and use these to build a predictive understanding of species that will benefit most strongly from microsite management. Finally, we will measure ecosystem service provision across the full seed mix and individualspecies to build comprehensive cost-benefit analyses of each treatment and resulting outcomes on the ground. Based on our findings, we will foster deeper relationships with commercial partners to make these techniques widely available, and we will create a series of media-related and literature-based outputs to illustrate the techniques and results to rangeland managers, restoration practitioners, and producers. This work will support the USDA’s overarching goal of strengthening stewardship and enhancing conservation, while also addressing fundamental questions around the optimization of goods and services on working landscapes.

Objectifs
To increase the efficacy of management resources in rangeland, this project will investigate key strategies to maximize seed-based outcomes in US rangelands for the increase of vegetation community diversity and the subsequent diversity-related provision of ecosystem services. To do so, we will answer three key questions:Q1 : To what extent does abiotic microsite management increase recruitment in diverse seed mixes ?Q2 : To what extent does biotic microsite management increase recruitment in diverse seed mixes ?Q3 : How can microsite management and species response traits be used to maximize ecosystem service provision in rangeland restoration ?These questions will be answered using a combination of technological development and field trials at Chatfield Farms in Denver, Colorado. Objectives to address these questions include:1. Develop deep furrowing methods for seeding large-scale semi-arid rangeland sites2. Compare the success of seeding treatments in these furrows compared to more traditional furrow techniques and surface seeding3. Develop fungicide coating techniques for a diverse native seed mix4. Test fungicide alone and in combination with facilitative soil biota addition in rangeland seeding5. Test how response traits of seeded species interact with treatments to drive success6. Test how treatments and response traits drive ecosystem service provision, specifically forage production, pollinator provision, and Carbon storage

Performing Institution : UNIVERSITY OF COLORADO
Investigator : Shackelford, N. ; Suding, KA, . ; Madsen, MA, .

AWARD TOTAL : $499,998

Présentation : USDA (NIFA)

Page publiée le 28 novembre 2021